4u^2+16u=37

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Solution for 4u^2+16u=37 equation:


Simplifying
4u2 + 16u = 37

Reorder the terms:
16u + 4u2 = 37

Solving
16u + 4u2 = 37

Solving for variable 'u'.

Reorder the terms:
-37 + 16u + 4u2 = 37 + -37

Combine like terms: 37 + -37 = 0
-37 + 16u + 4u2 = 0

Begin completing the square.  Divide all terms by
4 the coefficient of the squared term: 

Divide each side by '4'.
-9.25 + 4u + u2 = 0

Move the constant term to the right:

Add '9.25' to each side of the equation.
-9.25 + 4u + 9.25 + u2 = 0 + 9.25

Reorder the terms:
-9.25 + 9.25 + 4u + u2 = 0 + 9.25

Combine like terms: -9.25 + 9.25 = 0.00
0.00 + 4u + u2 = 0 + 9.25
4u + u2 = 0 + 9.25

Combine like terms: 0 + 9.25 = 9.25
4u + u2 = 9.25

The u term is 4u.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4u + 4 + u2 = 9.25 + 4

Reorder the terms:
4 + 4u + u2 = 9.25 + 4

Combine like terms: 9.25 + 4 = 13.25
4 + 4u + u2 = 13.25

Factor a perfect square on the left side:
(u + 2)(u + 2) = 13.25

Calculate the square root of the right side: 3.640054945

Break this problem into two subproblems by setting 
(u + 2) equal to 3.640054945 and -3.640054945.

Subproblem 1

u + 2 = 3.640054945 Simplifying u + 2 = 3.640054945 Reorder the terms: 2 + u = 3.640054945 Solving 2 + u = 3.640054945 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + u = 3.640054945 + -2 Combine like terms: 2 + -2 = 0 0 + u = 3.640054945 + -2 u = 3.640054945 + -2 Combine like terms: 3.640054945 + -2 = 1.640054945 u = 1.640054945 Simplifying u = 1.640054945

Subproblem 2

u + 2 = -3.640054945 Simplifying u + 2 = -3.640054945 Reorder the terms: 2 + u = -3.640054945 Solving 2 + u = -3.640054945 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + u = -3.640054945 + -2 Combine like terms: 2 + -2 = 0 0 + u = -3.640054945 + -2 u = -3.640054945 + -2 Combine like terms: -3.640054945 + -2 = -5.640054945 u = -5.640054945 Simplifying u = -5.640054945

Solution

The solution to the problem is based on the solutions from the subproblems. u = {1.640054945, -5.640054945}

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